CN214420322U - Daytime running position lamp control circuit and vehicle body control system - Google Patents
Daytime running position lamp control circuit and vehicle body control system Download PDFInfo
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- CN214420322U CN214420322U CN202023081946.5U CN202023081946U CN214420322U CN 214420322 U CN214420322 U CN 214420322U CN 202023081946 U CN202023081946 U CN 202023081946U CN 214420322 U CN214420322 U CN 214420322U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to a day position lamp control circuit and automobile body control system, include: the switching tube is respectively connected with the first input signal and the position lamp control signal, and the switching state of the switching tube is controlled by the position lamp control signal; the intelligent power switch module is respectively connected with the first input signal, the switch tube, the position lamp control signal and the daytime running position lamp, and controls the working state of the daytime running position lamp according to the first input signal or the position lamp control signal based on the switch state of the switch tube; and the voltage reduction module is respectively connected with the intelligent power switch module and the daytime running position lamp and is used for carrying out voltage reduction treatment when the position lamp control signal is a starting signal. The utility model can control the daytime running position lamp to realize the functions of the daytime running lamp and the front position lamp and reduce the brightness of the daytime running position lamp when needed; meanwhile, the service life of the daytime running position lamp can be prolonged, and whether the daytime running position lamp is normal or not can be accurately detected.
Description
Technical Field
The utility model relates to an automotive filed, especially a daytime running position lamp control circuit and automobile body control system.
Background
In order to ensure the driving safety of vehicles, more and more vehicles are provided with daytime running lights, which are generally installed on both sides of the front end of the vehicle. Correspondingly, the front position lamps of the common vehicle are also arranged on two sides of the front end of the vehicle. Therefore, in order to save cost, many vehicle enterprises design the daytime running light and the front position light to be shared (e.g., unified as the daytime running position light). However, the daytime running lamp belongs to a high-brightness lamp, and if the same brightness is adopted at night, the opposite driver can be dazzled, and the running safety is influenced. In order to solve this problem, the prior art generally adopts PWM to perform duty cycle control to output the brightness of the lamp. Although the brightness of the lamp can be adjusted by adopting the PWM control and reduced at night, the following defects exist in the PWM control: (1) the life of the daytime running position light can be affected; (2) because PWM can generate certain frequency, interference can be generated on other lines, and performance is unstable; (3) PWM is a fluctuating signal, and output power supply signal feedback collection is not accurate.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a daytime running position lamp control circuit and vehicle body control system, the function of daytime running lamp and front position lamp can be realized to the position lamp of steerable daytime running, and reduce the position lamp luminance of daytime running when needing (such as night or dark daytime), both saved the cost and guaranteed driving safety; meanwhile, the service life of the daytime running position lamp can be prolonged, and whether the daytime running position lamp is normal or not can be accurately detected.
The utility model adopts the following technical scheme:
in one aspect, a daytime running position lamp control circuit comprises:
the switch tube is respectively connected with the first input signal and the position lamp control signal; the on-off state of the switch tube is controlled by the position lamp control signal;
the intelligent power switch module is respectively connected with the first input signal, the switch tube, the position lamp control signal and the daytime running position lamp; controlling the working state of the daytime running position lamp according to the first input signal or the position lamp control signal based on the switching state of the switching tube;
and the voltage reduction module is respectively connected with the intelligent power switch module and the daytime running position lamp and is used for carrying out voltage reduction treatment when the position lamp control signal is a starting signal so as to adjust the working brightness of the daytime running position lamp.
Preferably, the first input signal comprises a power supply; the daytime running position lamp control circuit further comprises a sixth resistor; and the power supply is connected with the intelligent power switch module through the sixth resistor.
Preferably, the first input signal comprises a daytime running light control signal; the daytime running position lamp control circuit further comprises a seventh resistor; the daytime running light control signal is connected with the intelligent power switch module through the seventh resistor.
Preferably, the daytime running lamp control circuit further comprises a fifth resistor; and the position lamp control signal is connected with the intelligent power switch module through the fifth resistor.
Preferably, the intelligent power switch module includes a first input port, a second input port, a first output port and a second output port;
the first input port is connected with the first input signal and the switch tube, and the first output port is connected with the daytime running position lamp; the second input port is connected with the position lamp control signal, and the second output port is connected with the daytime running position lamp through the voltage reduction module;
or;
the first input port is connected with the position lamp control signal, and the first output port is connected with the daytime running position lamp through the voltage reduction module; the second input port is connected with the first input signal and the switch tube, and the second output port is connected with the daytime running position lamp.
Preferably, the daytime running position lamp control circuit further comprises a first diode and a second diode; an output port of the intelligent power switch module is connected with the daytime running position lamp through the first diode; and the other output port of the intelligent power switch module is connected with the daytime running position lamp through the voltage reduction module and the second diode.
Preferably, the intelligent power switch module further comprises a load current detection port; the load current detection port is connected with the MCU control unit, and the MCU control unit detects whether the daytime running position lamp is normal or not through the load current detection port.
Preferably, the switch tube is a triode.
Preferably, the daytime running position lamp control circuit further comprises a first capacitor; and the base electrode of the triode is grounded through the first capacitor.
On the other hand, the vehicle body control system comprises an MCU control unit and a daytime running position lamp control circuit; the daytime running position lamp control circuit is connected with the MCU control unit.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the utility model can control the daytime running position lamp to realize the functions of the daytime running lamp and the front position lamp at the same time through the matching use of the switch tube, the intelligent power switch module, the voltage reduction module, the first input signal and the position lamp control signal, and reduce the brightness of the daytime running position lamp when needed (such as at night or in dark daytime), thereby saving the cost and ensuring the running safety; meanwhile, the service life of the daytime running position lamp can be prolonged;
(2) the first input signal of the utility model comprises a power supply and a daytime running light control signal, so that the requirements of two application scenes can be met; when the first input signal is a power supply, the daytime running position lamp can be automatically turned on when the vehicle is started, so that the running safety is ensured; when the first input signal is a daytime running light control signal, the daytime running position light is turned on according to the requirement if the vehicle has running action or meets a certain speed, so that the power consumption is reduced;
(3) the first capacitor of the utility model can ensure stable voltage output when the triode is switched on and off, and avoid the possible twinkling of the triode when the triode is switched on and off;
(4) the first diode and the second diode of the utility model can prevent the voltage from flowing back to the intelligent power switch module;
(5) the utility model discloses an output of intelligent power switch module is steady state, therefore the feedback voltage that MCU the control unit was given in the output of intelligent power switch module's load current detection port will be superior to the PWM circuit makes MCU the control unit can accurately detect out whether the daytime running position lamp is normal.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention can be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following description lists the embodiments of the present invention.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic circuit diagram of a first embodiment of the present invention;
fig. 2 is a circuit diagram of a first embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a second embodiment of the present invention;
fig. 4 is a circuit diagram of a second embodiment of the present invention.
Detailed Description
In order to make the technical solution and advantages of the present invention more clearly understood, the following description is given with reference to the accompanying drawings and embodiments,
the present invention will be described in further detail. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
For simplicity and clarity of description, the aspects of the present invention are described below by describing several representative embodiments. Numerous details of the embodiments are set forth to provide an understanding of the principles of the invention. It is clear, however, that the solution according to the invention can be implemented without being limited to these details. Some embodiments are not described in detail, but rather only to give a framework, in order to avoid unnecessarily obscuring aspects of the present invention. Hereinafter, "including" means "including but not limited to", "according to … …" means "at least according to … …, but not limited to … … only". In view of the language convention of chinese, the following description, when it does not specifically state the number of a component, means that the component may be one or more, or may be understood as at least one.
Example one
Referring to fig. 1 and 2, the present invention provides a daytime running position lamp control circuit, including:
the switch tube 12 is respectively connected with the first input signal and the position lamp control signal 11; the on-off state of the switch tube 12 is controlled by the position lamp control signal 11;
the intelligent power switch module 13 is connected with the first input signal, the switch tube 12, the position lamp control signal 11 and the daytime running position lamp 15 respectively; based on the on-off state of the switch tube 12, controlling the working state of the daytime running position lamp 15 according to the first input signal or the position lamp control signal 11;
and the voltage reduction module 14 is connected with the intelligent power switch module 13 and the daytime running position lamp 15 respectively and is used for performing voltage reduction processing when the position lamp control signal 11 is a starting signal so as to adjust the working brightness of the daytime running position lamp 15.
Specifically, in this embodiment, the first input signal includes a power supply; the daytime running position lamp control circuit further comprises a sixth resistor R6; the power supply is connected with the intelligent power switch module 13 through the sixth resistor R6.
The present embodiment is designed to activate the daytime running position lamp 15 when the vehicle is started. After the vehicle is started, the vehicle can provide power for the daytime running position lamp 15 through the sixth resistor R6, and if the position lamp control signal 11 is at a low level, the intelligent power switch module 13 directly outputs the power to the daytime running position lamp 15, and the daytime running position lamp 15 is in a high-brightness state.
The daytime running position lamp control circuit further comprises a third resistor R3 and a fourth resistor R4, the power supply VCC sequentially passes through the sixth resistor R6, the third resistor R3 and the fourth resistor R4 and the intelligent power switch module 13 is connected, and the intelligent power switch module 13 outputs power to the daytime running position lamp 15 from a corresponding output port to control the daytime running position lamp 15 to be highlighted.
Further, when the vehicle is driven in a night or in a dark daytime, the position light control signal 11 is set to a high level signal. At this time, the switch tube 12 is turned on, the output of the intelligent power switch module 13 is processed by the voltage reduction module 14 and then is output to the daytime running position lamp 15, and the brightness of the daytime running position lamp 15 is reduced.
The position light control signal 11 may be issued by the MCU control unit 17. In a specific implementation, the MCU control unit 17 may automatically output a high-level control signal or a low-level control signal according to the ambient brightness. Or the driver may trigger the driver by himself, for example, the MCU control unit 17 sends a signal to the touch switch, and the MCU control unit 17 controls to output a high-level control signal or a low-level control signal after receiving the instruction from the driver.
The daytime running lamp control circuit further comprises a fifth resistor R5; the position lamp control signal 11 is connected to the intelligent power switch module 13 through the fifth resistor R5.
Specifically, the smart power switch module 13 includes a first input port IN0, a second input port IN1, a first output port OUT0, and a second output port OUT 1;
the first input port IN0 is connected to the first input signal and the switch tube 12, and the first output port OUT0 is connected to the daytime running light 15; the second input port IN1 is connected to the position lamp control signal 11, and the second output port OUT1 is connected to the daytime position lamp 15 via the voltage-dropping module 14;
or;
the first input port IN0 is connected to the position lamp control signal 11, and the first output port OUT0 is connected to the daytime position lamp 15 via the voltage-dropping module 14; the second input port IN1 is connected to the first input signal and the switch tube 12, and the second output port OUT1 is connected to the daytime running light 15.
IN this embodiment, the intelligent power switch module 13(U1) is a BTS7020, the first input port IN0 is connected to the first input signal and the switch tube 12, and the first output port OUT0 is connected to the daytime running position light 15; the second input port IN1 is connected to the position lamp control signal 11, and the second output port OUT1 is connected to the daytime position lamp 15 via the voltage-dropping module 14.
The intelligent power switch module 13 further includes a load current detection port IS; the load current detection port IS connected with the MCU control unit 17, and the MCU control unit 17 detects whether the daytime running position lamp 15 IS normal through the load current detection port IS. Referring to fig. 2, the load current detection port IS outputs to the MCU control unit 17 through an eighth resistor.
Since the output of the intelligent power switch module 13 of this embodiment IS in a stable state, the feedback voltage output from the load current detection port IS of the intelligent power switch module 13 to the MCU control unit 17 IS better than the feedback voltage of the PWM circuit, so that the MCU control unit 17 can accurately detect whether the daytime running position light 15 IS normal.
The smart power switch module 13 further includes a power port VS. In this embodiment, the power port is connected to the power supply VCC.
Specifically, the switching tube 12 is a transistor Q1, and the transistor Q1 includes an NPN transistor Q1 or a PNP transistor Q1. In this embodiment, the transistor Q1 is an NPN transistor Q1.
The daytime running position lamp control circuit further comprises a first resistor R1 and a second resistor R2, the position lamp control signal is connected with the base of the triode Q1 through the first resistor R1, and the base of the triode Q1 is grounded through the second resistor R2.
The daytime running position lamp control circuit further comprises a first capacitor C1; the base of the transistor Q1 is connected to ground through the first capacitor C1. The first capacitor C1 can ensure stable voltage output when the transistor Q1 switches the switching state (from closed to conductive or from conductive to closed), thereby avoiding possible flicker when the transistor Q1 switches the switching state.
Further, the solar position light control circuit further comprises a first diode D1 and a second diode D2; an output port of the intelligent power switch module 13 is connected to the daytime running position light 15 through the first diode D1; the other output port of the intelligent power switch module 13 is connected to the daytime running position light 15 through the voltage reduction module 14 and the second diode D2. In this embodiment, the first diode D1 and the second diode D2 are used for blocking, so that the voltage can be prevented from flowing back to the smart power switch module 13.
The voltage reducing module 14(U2) may be implemented by a conventional technology, a chip, or a circuit. In this embodiment, the present chip is used.
On the other hand, the vehicle body control system comprises an MCU control unit 17 and a daytime running position lamp control circuit; the daytime running position lamp control circuit is connected with the MCU control unit 17. The MCU control unit 17 can implement the functions described in the daytime running position light control circuit.
IN this embodiment, after the vehicle is started, if the position light control signal 11 is a low level signal, the triode Q1 is turned off, the power supply is input to the first input port IN0 of the intelligent power switch module 13 through the sixth resistor R6, the third resistor R3 and the fourth resistor R4, the first input port IN0 is triggered to be at a high level, at this time, the first output port OUT0 of the intelligent power switch module 13 is output to the daytime position light 15, and the daytime position light 15 is controlled to be IN a high-brightness state. After the vehicle starts, if the position light control signal 11 is a high level signal, the triode Q1 is turned on, the first input port IN0 of the intelligent power switch module 13 is pulled down to a low level, at this time, the first output port OUT0 of the intelligent power switch module 13 stops outputting, meanwhile, the position light control signal 11 is input to the second input port IN1 of the intelligent power switch module 13 through the fifth resistor R5, the second input port IN1 is triggered to be a high level, at this time, the second output port OUT1 of the intelligent power switch module 13 is output to the voltage reduction module 14, and the voltage reduction module 14 controls the daytime running position light 15 to reduce the brightness after voltage reduction processing.
Example two
Referring to fig. 3 and 4, the present invention provides a daytime running position lamp control circuit, including:
the switch tube 12 is respectively connected with the first input signal and the position lamp control signal 11; the on-off state of the switch tube 12 is controlled by the position lamp control signal 11;
the intelligent power switch module 13 is connected with the first input signal, the switch tube 12, the position lamp control signal 11 and the daytime running position lamp 15 respectively; based on the on-off state of the switch tube 12, controlling the working state of the daytime running position lamp 15 according to the first input signal or the position lamp control signal 11;
and the voltage reduction module 14 is connected with the intelligent power switch module 13 and the daytime running position lamp 15 respectively and is used for performing voltage reduction processing when the position lamp control signal 11 is a starting signal so as to adjust the working brightness of the daytime running position lamp 15.
Specifically, in this embodiment, the first input signal includes a daytime running light control signal 16; the daytime running lamp control circuit further comprises a seventh resistor R7; the daytime running light control signal 16 is connected with the intelligent power switch module 13 through the seventh resistor R7.
The present embodiment is designed such that the daytime running position lamp 15 is activated when the vehicle satisfies a certain running condition (e.g., a certain vehicle speed is reached or manually activated by the driver).
After the vehicle is started, if the daytime running lamp control signal 16 is at a high level and the position lamp control signal 11 is at a low level, the intelligent power switch module 13 directly outputs the daytime running lamp control signal to the daytime running position lamp 15, so as to control the daytime running position lamp 15 to be in a high-brightness state.
The daytime running position lamp control circuit further comprises a third resistor R3 and a fourth resistor R4, the power supply sequentially passes through the seventh resistor R7, the third resistor R3 and the fourth resistor R4 to be connected with the intelligent power switch module 13, and the intelligent power switch module 13 outputs power to the daytime running position lamp 15 from a corresponding output port to control the daytime running position lamp 15 to be high-lighted.
Further, when the vehicle is driven in a night or in a dark daytime, the position light control signal 11 is set to a high level signal. At this time, the switch tube 12 is turned on, the output of the intelligent power switch module 13 is processed by the voltage reduction module 14 and then is output to the daytime running position lamp 15, and the brightness of the daytime running position lamp 15 is reduced.
The daytime running light control signal 16 and the position light control signal 11 may be sent by the MCU control unit 17. In a specific implementation, the MCU control unit 17 may automatically output a high-level control signal or a low-level control signal according to the ambient brightness (vehicle speed). Or the driver may trigger the driver by himself, for example, the MCU control unit 17 sends a signal to the touch switch, and the MCU control unit 17 controls to output a high-level control signal or a low-level control signal after receiving the instruction from the driver.
The daytime running lamp control circuit further comprises a fifth resistor R5; the position lamp control signal 11 is connected to the intelligent power switch module 13 through the fifth resistor R5.
Specifically, the smart power switch module 13 includes a first input port IN0, a second input port IN1, a first output port OUT0, and a second output port OUT 1;
the first input port IN0 is connected to the first input signal and the switch tube 12, and the first output port OUT0 is connected to the daytime running light 15; the second input port IN1 is connected to the position lamp control signal 11, and the second output port OUT1 is connected to the daytime position lamp 15 via the voltage-dropping module 14;
or;
the first input port IN0 is connected to the position lamp control signal 11, and the first output port OUT0 is connected to the daytime position lamp 15 via the voltage-dropping module 14; the second input port IN1 is connected to the first input signal and the switch tube 12, and the second output port OUT1 is connected to the daytime running light 15.
IN this embodiment, the intelligent power switch module 13 is a BTS7020, the first input port IN0 is connected to the first input signal and the switch tube 12, and the first output port OUT0 is connected to the daytime running position light 15; the second input port IN1 is connected to the position lamp control signal 11, and the second output port OUT1 is connected to the daytime position lamp 15 via the voltage-dropping module 14.
The intelligent power switch module 13 further includes a load current detection port IS; the load current detection port IS connected with the MCU control unit 17, and the MCU control unit 17 detects whether the daytime running position lamp 15 IS normal through the load current detection port IS. Referring to fig. 4, the load current detection port IS outputs to the MCU control unit 17 through an eighth resistor.
Since the output of the intelligent power switch module 13 of this embodiment IS in a stable state, the feedback voltage output from the load current detection port IS of the intelligent power switch module 13 to the MCU control unit 17 IS better than the feedback voltage of the PWM circuit, so that the MCU control unit 17 can accurately detect whether the daytime running position light 15 IS normal.
The smart power switch module 13 further includes a power port VS. In this embodiment, the power port is connected to the power supply VCC.
Specifically, the switching tube 12 is a transistor Q1, and the transistor Q1 includes an NPN transistor Q1 or a PNP transistor Q1. In this embodiment, the transistor Q1 is an NPN transistor Q1.
The daytime running position lamp control circuit further comprises a first resistor R1 and a second resistor R2, the position lamp control signal is connected with the base of the triode Q1 through the first resistor R1, and the base of the triode Q1 is grounded through the second resistor R2.
The daytime running position lamp control circuit further comprises a first capacitor C1; the base of the transistor Q1 is connected to ground through the first capacitor C1. The first capacitor C1 can ensure stable voltage output when the transistor Q1 switches the switching state (from closed to conductive or from conductive to closed), thereby avoiding possible flicker when the transistor Q1 switches the switching state.
Further, the solar position light control circuit further comprises a first diode D1 and a second diode D2; an output port of the intelligent power switch module 13 is connected to the daytime running position light 15 through the first diode D1; the other output port of the intelligent power switch module 13 is connected to the daytime running position light 15 through the voltage reduction module 14 and the second diode D2. In this embodiment, the first diode D1 and the second diode D2 are used for blocking, so that the voltage can be prevented from flowing back to the smart power switch module 13.
The voltage reducing module 14(U2) may be implemented by a conventional technology, a chip, or a circuit. In this embodiment, the present chip is used.
On the other hand, the vehicle body control system comprises an MCU control unit 17 and a daytime running position lamp control circuit; the daytime running position lamp control circuit is connected with the MCU control unit 17. The MCU control unit 17 can implement the functions described in the daytime running position light control circuit.
IN this embodiment, after the vehicle is started, if the daytime running light control signal 16 is a high level signal and the position light control signal 11 is a low level signal, the triode Q1 is turned off, the daytime running light control signal 16 is input to the first input port IN0 of the intelligent power switch module 13 through the seventh resistor R7, the third resistor R3 and the fourth resistor R4, and triggers the first input port IN0 to be a high level, at this time, the first output port OUT0 of the intelligent power switch module 13 is output to the daytime running position light 15, and the daytime running position light 15 is controlled to be IN a high brightness state. After the vehicle starts, if the position light control signal 11 is a high level signal, the triode Q1 is turned on, the first input port IN0 of the intelligent power switch module 13 is pulled down to a low level, at this time, the first output port OUT0 of the intelligent power switch module 13 stops outputting, meanwhile, the position light control signal 11 is input to the second input port IN1 of the intelligent power switch module 13 through the fifth resistor R5, the second input port IN1 is triggered to be a high level, at this time, the second output port OUT1 of the intelligent power switch module 13 is output to the voltage reduction module 14, and the voltage reduction module 14 controls the daytime running position light 15 to reduce the brightness after voltage reduction processing.
It should be noted that the two control circuits may be implemented on different vehicles according to different user requirements and different vehicle types, or may be implemented on the same vehicle at the same time.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. A daytime running light control circuit, comprising:
the switch tube is respectively connected with the first input signal and the position lamp control signal; the on-off state of the switch tube is controlled by the position lamp control signal;
the intelligent power switch module is respectively connected with the first input signal, the switch tube, the position lamp control signal and the daytime running position lamp; controlling the working state of the daytime running position lamp according to the first input signal or the position lamp control signal based on the switching state of the switching tube;
and the voltage reduction module is respectively connected with the intelligent power switch module and the daytime running position lamp and is used for carrying out voltage reduction treatment when the position lamp control signal is a starting signal so as to adjust the working brightness of the daytime running position lamp.
2. The daytime running position light control circuit according to claim 1, wherein the first input signal comprises a power supply; the daytime running position lamp control circuit further comprises a sixth resistor; and the power supply is connected with the intelligent power switch module through the sixth resistor.
3. The daytime running light control circuit according to claim 1, wherein the first input signal comprises a daytime running light control signal; the daytime running position lamp control circuit further comprises a seventh resistor; the daytime running light control signal is connected with the intelligent power switch module through the seventh resistor.
4. The daytime running position lamp control circuit according to claim 1, further comprising a fifth resistor; and the position lamp control signal is connected with the intelligent power switch module through the fifth resistor.
5. The daytime running position lamp control circuit according to claim 1, wherein the intelligent power switch module comprises a first input port, a second input port, a first output port and a second output port;
the first input port is connected with the first input signal and the switch tube, and the first output port is connected with the daytime running position lamp; the second input port is connected with the position lamp control signal, and the second output port is connected with the daytime running position lamp through the voltage reduction module;
or;
the first input port is connected with the position lamp control signal, and the first output port is connected with the daytime running position lamp through the voltage reduction module; the second input port is connected with the first input signal and the switch tube, and the second output port is connected with the daytime running position lamp.
6. The daytime running position light control circuit according to claim 5, wherein the daytime running position light control circuit further comprises a first diode and a second diode; an output port of the intelligent power switch module is connected with the daytime running position lamp through the first diode; and the other output port of the intelligent power switch module is connected with the daytime running position lamp through the voltage reduction module and the second diode.
7. The daytime running light control circuit according to claim 1, wherein the intelligent power switch module further comprises a load current detection port; the load current detection port is connected with the MCU control unit, and the MCU control unit detects whether the daytime running position lamp is normal or not through the load current detection port.
8. The daytime running light control circuit according to claim 1, wherein the switching tube is a triode.
9. The daytime running position lamp control circuit according to claim 8, further comprising a first capacitor; and the base electrode of the triode is grounded through the first capacitor.
10. A vehicle body control system comprising an MCU control unit, characterized by further comprising a daytime running position lamp control circuit according to any one of claims 1 to 9; the daytime running position lamp control circuit is connected with the MCU control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081946.5U CN214420322U (en) | 2020-12-18 | 2020-12-18 | Daytime running position lamp control circuit and vehicle body control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023081946.5U CN214420322U (en) | 2020-12-18 | 2020-12-18 | Daytime running position lamp control circuit and vehicle body control system |
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| CN214420322U true CN214420322U (en) | 2021-10-19 |
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| CN202023081946.5U Active CN214420322U (en) | 2020-12-18 | 2020-12-18 | Daytime running position lamp control circuit and vehicle body control system |
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